The Apostle Paul
Romans 5:18ESV·traditional attribution

Therefore, as one trespass led to condemnation for all men, so one act of righteousness leads to justification and life for all men.

John Calvin Reformed @genevareformer

18. Therefore, etc. This is a defective sentence; it will be complete if the words condemnation and justification be read in the nominative case; as doubtless you must do in order to complete the sense. We have here the general conclusion from the preceding comparison; for, omitting the mention of the intervening explanation, he now completes the comparison, “As by the offense of one we...

Matthew Henry Presbyterian @wholebiblehenry

The apostle here describes the fountain and foundation of justification, laid in the death of the Lord Jesus. The streams are very sweet, but, if you run them up to the spring-head, you will find it to be Christ's dying for us; it is in the precious stream of Christ's blood that all these privileges come flowing to us: and therefore he enlarges upon this...

Commenting on Romans 5:6-21

John Gill Reformed Baptist @doctorgill

Therefore as by the offence of one,.... Or by one offence, as before, the guilt of which is imputed to, and judgment came upon all men to condemnation; which word is used in a legal sense, and intends condemnation to eternal death, as appears from the antithesis in the text; for if "justification of life", means an adjudging to eternal life, as it certainly does...